The role of PET-CT in diagnosing stages of nasopharyngeal carcinoma at Vietnam National Cancer Hospital
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Abstract
Nasopharyngeal carcinoma is a common malignancy in the head and neck region. A cross-sectional study was performed on 73 patients with nasopharyngeal carcinoma (type 3 - WHO 2017) from June 2023 to June 2024 at Vietnam National Cancer Hospital to evaluate the role of PET-CT in diagnosing the disease stage. Results: The average standard uptake value (SUV max) at the primary tumor was 16.6, at the neck lymph nodes was 13.1. The average SUV max value at the primary tumor and neck lymph nodes increased gradually according to the T, N stages, the difference was statistically significant (p < 0.05). Compared with other imaging methods (MRI, CT, bone scintigraphy, ultrasound), PET-CT changed the T stage in 24.7% of patients, the N stage in 17.8% of patients, and detected 6.8% of patients with distant metastases that were not detected by other imaging methods. PET-CT changed the overall staging in 26% of the patients.
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Keywords
Nasopharyngeal carcinoma, PETCT, para-clinical
References
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